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| author | joachimschmidt557 <joachim.schmidt557@outlook.com> | 2021-04-06 21:14:00 +0200 |
|---|---|---|
| committer | joachimschmidt557 <joachim.schmidt557@outlook.com> | 2021-04-06 21:14:00 +0200 |
| commit | ac2211118fe9030aa8a524549c9bb7caf8795f4d (patch) | |
| tree | 32701a0735237638341180c720fd65da6376b1b6 /src/codegen.zig | |
| parent | 2bfc6d14d500dcaf66b8ee7d24637e25e3795a5e (diff) | |
| download | zig-ac2211118fe9030aa8a524549c9bb7caf8795f4d.tar.gz zig-ac2211118fe9030aa8a524549c9bb7caf8795f4d.zip | |
stage2 regalloc: Add getReg and getRegWithoutTracking
Diffstat (limited to 'src/codegen.zig')
| -rw-r--r-- | src/codegen.zig | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/src/codegen.zig b/src/codegen.zig index fbd412ceba..cacf51730a 100644 --- a/src/codegen.zig +++ b/src/codegen.zig @@ -1783,8 +1783,8 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type { switch (mc_arg) { .none => continue, .register => |reg| { + try self.register_manager.getRegWithoutTracking(reg); try self.genSetReg(arg.src, arg.ty, reg, arg_mcv); - // TODO interact with the register allocator to mark the instruction as moved. }, .stack_offset => { // Here we need to emit instructions like this: @@ -1925,8 +1925,8 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type { .compare_flags_signed => unreachable, .compare_flags_unsigned => unreachable, .register => |reg| { + try self.register_manager.getRegWithoutTracking(reg); try self.genSetReg(arg.src, arg.ty, reg, arg_mcv); - // TODO interact with the register allocator to mark the instruction as moved. }, .stack_offset => { return self.fail(inst.base.src, "TODO implement calling with parameters in memory", .{}); @@ -1988,8 +1988,8 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type { .compare_flags_signed => unreachable, .compare_flags_unsigned => unreachable, .register => |reg| { + try self.register_manager.getRegWithoutTracking(reg); try self.genSetReg(arg.src, arg.ty, reg, arg_mcv); - // TODO interact with the register allocator to mark the instruction as moved. }, .stack_offset => { return self.fail(inst.base.src, "TODO implement calling with parameters in memory", .{}); @@ -2039,8 +2039,8 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type { switch (mc_arg) { .none => continue, .register => |reg| { + try self.register_manager.getRegWithoutTracking(reg); try self.genSetReg(arg.src, arg.ty, reg, arg_mcv); - // TODO interact with the register allocator to mark the instruction as moved. }, .stack_offset => { // Here we need to emit instructions like this: @@ -2704,8 +2704,11 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type { const reg_name = input[1 .. input.len - 1]; const reg = parseRegName(reg_name) orelse return self.fail(inst.base.src, "unrecognized register: '{s}'", .{reg_name}); - const arg = try self.resolveInst(inst.args[i]); - try self.genSetReg(inst.base.src, inst.args[i].ty, reg, arg); + + const arg = inst.args[i]; + const arg_mcv = try self.resolveInst(arg); + try self.register_manager.getRegWithoutTracking(reg); + try self.genSetReg(inst.base.src, arg.ty, reg, arg_mcv); } if (mem.eql(u8, inst.asm_source, "svc #0")) { @@ -2734,8 +2737,11 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type { const reg_name = input[1 .. input.len - 1]; const reg = parseRegName(reg_name) orelse return self.fail(inst.base.src, "unrecognized register: '{s}'", .{reg_name}); - const arg = try self.resolveInst(inst.args[i]); - try self.genSetReg(inst.base.src, inst.args[i].ty, reg, arg); + + const arg = inst.args[i]; + const arg_mcv = try self.resolveInst(arg); + try self.register_manager.getRegWithoutTracking(reg); + try self.genSetReg(inst.base.src, arg.ty, reg, arg_mcv); } if (mem.eql(u8, inst.asm_source, "svc #0")) { @@ -2766,8 +2772,11 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type { const reg_name = input[1 .. input.len - 1]; const reg = parseRegName(reg_name) orelse return self.fail(inst.base.src, "unrecognized register: '{s}'", .{reg_name}); - const arg = try self.resolveInst(inst.args[i]); - try self.genSetReg(inst.base.src, inst.args[i].ty, reg, arg); + + const arg = inst.args[i]; + const arg_mcv = try self.resolveInst(arg); + try self.register_manager.getRegWithoutTracking(reg); + try self.genSetReg(inst.base.src, arg.ty, reg, arg_mcv); } if (mem.eql(u8, inst.asm_source, "ecall")) { @@ -2796,8 +2805,11 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type { const reg_name = input[1 .. input.len - 1]; const reg = parseRegName(reg_name) orelse return self.fail(inst.base.src, "unrecognized register: '{s}'", .{reg_name}); - const arg = try self.resolveInst(inst.args[i]); - try self.genSetReg(inst.base.src, inst.args[i].ty, reg, arg); + + const arg = inst.args[i]; + const arg_mcv = try self.resolveInst(arg); + try self.register_manager.getRegWithoutTracking(reg); + try self.genSetReg(inst.base.src, arg.ty, reg, arg_mcv); } if (mem.eql(u8, inst.asm_source, "syscall")) { |